Abstract: Phenyl-containing organopolysiloxane fluids characterized by the formula, ##STR1## wherein Ph is phenyl, R is hydrogen, trimethylsilyl or mixtures thereof and wherein x and y have a value sufficient to provide a phenyl content of from about 7 weight percent to about 80 weight percent are provided. Also provided are polycarbonate compositions comprising these novel phenyl containing organopolysiloxane fluids.

Abstract: There is provided a method for preparing .beta.-phenylethylchlorosilanes comprising forming a mixture of styrene, a chlorosilane having at least one silicon-bonded hydrogen atom, a platinum catalyst and a tertiary amine, and heating the mixture in order to effect addition of the chlorosilane to styrene.

Abstract: Phenyl-containing organopolysiloxane fluids characterized by the formula, ##STR1## wherein Ph is phenyl, R is hydrogen, trimethylsilyl or mixtures thereof and wherein x and y have a value sufficient to provide a phenyl content of from about 7 weight percent to about 80 weight percent are provided. Also provided are polycarbonate compositions comprising these novel phenyl containing organopolysiloxane fluids.

Abstract: The present invention provides a silicone hydraulic fluid which is particularly useful as an automotive brake fluid which is comprised of a polysiloxane base fluid having specified amounts of mono-, di-, and tri- functionality; which is combined with a hydrocarbonoxy functional silicone additive which provides advantageous low temperature characteristics. Other optional brake fluid additives can also be utilized.

Abstract: There is provided a stable one-package silicone electronic junction coating composition comprised of a heat curable polyorganosiloxane composition which exhibits improved adhesion and catalyzed work-life and which is comprised of the reaction product of an olefinorganopolysiloxane, and an organohydrogenpolysiloxane, which is catalyzed by platinum metal and which is inhibited by a combination of agents comprised of ethylenically unsaturated isocyanurates and dialkylacetylenedicarboxylates.

Abstract: The present invention relates to a variety of silicone diffusion pump fluids which are inexpensive to produce. An example of a preferred diffusion pump fluid of the present case is one of the formula, ##STR1## where .phi. is phenyl and such that the fluid boils at 245.degree. C. at 1.5 mm. of Hg pressure. The present invention also has within its scope a process for producing such silicone diffusion pump fluids by hydrolyzing the appropriate chlorosilanes by a reverse hydrolysis procedure, that is, adding the appropriate amount of water to the mixture of chlorosilanes.

Abstract: The present invention relates to a silicone lubricant composed of an organopolysiloxane polymer and an effective amount of chlorinated phosphite or phosphonate. Such a lubricant composition is especially effective for lubricating soft metals such as copper or bronze and for improving dimethylpolysiloxane lubricants.

Abstract: There is provided by the present invention, a silicone fluid useful as a hydraulic fluid and more particularly useful as a brake fluid for vehicles.This silicone fluid comprises generally a linear diorganopolysiloxane having a viscosity at 25.degree. C. of 20 to 500 centistokes. Various materials and additives can be added to such a silicone fluid so as to improve its properties as a hydraulic fluid.

Abstract: There is provided by the present invention, a silicone fluid useful as a hydraulic fluid and more particularly useful as a brake fluid for vehicles.This silicone fluid comprises generally a linear diorganopolysiloxane having a viscosity at 25.degree. C of 20 to 500 centistokes. Various materials and additives can be added to such a silicone fluid so as to improve its properties as a hydraulic fluid.

Abstract: A silicone polymer fluid useful as a brake fluid comprising a polymer or monomer having 0 to 100 mole percent of polymeric or monomeric units selected from R.sub.2 Si(OM).sub.2 units, ##STR1## AND R.sub.2 SiO units, 0 to 100 mole percent of polymeric and monomeric units selected from RSi(OM).sub.3 units, ##STR2## AND RSiO.sub.3/2 units, 0 to 10 mole percent of units selected from the class consisting of (MO).sub.3 SiO.sub.1/2 units, (MO).sub.2 SiO units, (MO)SiO.sub.3/2 units and SiO.sub.2 units and 0 to 5 mole percent of units selected from R.sub.3 SiO.sub.1/2 units wherein the viscosity of the polymer may vary from 2 to 400 centistokes at 25.degree. R is a monovalent hydrocarbon radical, M is selected from alkyl, alkoxy, alkylene, alkoxyalkyleneoxyalkylene and alkyl polyether substituent radicals, wherein the preferred substituent for M is 2-methoxy-2-ethoxy-ethylene or higher and R is preferably methyl.

Abstract: An improved preformulated internal green tire lubricant and bag release composition is disclosed which comprises a silicone fluid; an alkylene oxide polyol; a particulate solid for providing air bleed channels between the expanding pressure core and the green tire, the amounts of silicone fluid and polyol combined being present at a weight ratio of at least 0.6:1 with respect to the particulate solid; an organic hydrocarbon solvent; a thickening agent; a small effective amount of unsaturated fatty acid to improve lubricity and wet-out and sufficient suspension agents to provide a stabilized, non-settling suspension. A process for decreasing friction in the bag molding of tires using such a composition is also disclosed.

Abstract: There is provided by the present invention, a silicone fluid useful as a hydraulic fluid and more particularly useful as a brake fluid for vehicles.This silicone fluid comprises generally a linear diorganopolysiloxane having a viscosity at 25.degree. C of 20 to 500 centistokes. Various materials and additives can be added to such a silicone fluid so as to improve its properties as a hydraulic fluid.

Abstract: There is provided by the present invention, a silicone fluid useful as a hydraulic fluid and more particularly useful as a brake fluid for vehicles.This silicone fluid comprises generally a linear diorganopolysiloxane having a viscosity at 25.degree.C of 20 to 500 centistokes in combination with carboxylic acid anhydrides as water tolerance additives. Various materials and additives can be added to such a silicone fluid so as to improve its properties as a hydraulic fluid.

Abstract: A silicone polymer fluid useful as a brake fluid comprising a polymer or monomer having 0 to 100 mole percent of polymeric or monomeric units selected from P.sub.2 Si(OM).sub.2 units, ##EQU1## units and R.sub.2 SiO units. 0 to 100 mole percent of polymeric and monomeric units selected from RSi(OM).sub.3 units.Units. ##EQU2## units, ##EQU3## units, and RSiO.sub.3/2 units. 0 to 10 mole percent of units selected from the class consisting of (MO).sub.3 SiO.sub.1/2 units. (MO).sub.2 SiO units. (MO)SiO.sub.3/2 units and SiO.sub.2 units and 0 to 5 mole percent of units selected from R.sub.3 SiO.sub.1/2 units wherein the viscosity of the polymer may vary from 2 to 400 centistones at 25.degree.C. R is a monovalent hydrocarbon radical, M is selected from alkyl, alkoxy, alkylene, alkoxyalkyleneoxyalkylene and alkyl polyether substituent radicals, wherein the preferred substituent for M is 2-methoxy-2-ethoxy-ethylene or higher and R is preferably methyl.